perpetuate

A word like this hides a little Roman engine inside it. Latin had perpetuus, a heavy, stately adjective for something continuous or unbroken, and English later borrowed the verb form perpetuate from Latin perpetuatus in the 1520s, when scholars loved dressing old ideas in classical robes. The roots pull in two directions: per- gives the sense of going through or all the way, while pet- comes from a family of Latin words about seeking and aiming, the same old crowd that helped produce petition and appetite. So when you perpetuate something, you are not just keeping it alive; you are pushing it onward, refusing to let it drop out of the line of time. It is the verbal equivalent of passing a torch down a corridor that never quite ends.